An all solid state pulse power source for high PRF induction accelerators

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Description

Researchers at the Lawrence Livermore National Laboratory (LLNL) are developing a flexible, all solid-state pulsed power source that will enable an induction accelerator to produce mulitkiloampere electron beams at a maximum pulse repetition frequency (prf) of 2 MHz. The prototype source consists of three, 15-kV, 4.8-kA solid-state modulators stacked in an induction adder configuration. Each modulator contains over 1300 field-effect transistors (FETs) that quickly connect and disconnect four banks of energy storage capacitors to a magnetic induction core. The FETs are commanded on and off by an optical signal that determines the duration of the accelerating pulse. Further electronic circuitry ... continued below

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8 p.

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Kirbie, H. June 1998.

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Description

Researchers at the Lawrence Livermore National Laboratory (LLNL) are developing a flexible, all solid-state pulsed power source that will enable an induction accelerator to produce mulitkiloampere electron beams at a maximum pulse repetition frequency (prf) of 2 MHz. The prototype source consists of three, 15-kV, 4.8-kA solid-state modulators stacked in an induction adder configuration. Each modulator contains over 1300 field-effect transistors (FETs) that quickly connect and disconnect four banks of energy storage capacitors to a magnetic induction core. The FETs are commanded on and off by an optical signal that determines the duration of the accelerating pulse. Further electronic circuitry is provided that resets the magnetic cores in each modulator immediately after the accelerating pulse. The system produces bursts of five or more pulses with an adjustable pulse width that ranges from 200 ns to 2 {micro}s The pulse duty factor within a burst can be as high as 25% while still allowing time for the induction core to reset. The solid-state modulator described above is called ARM-II and is named for the Advanced Radiographic Machine (ARM)-a powerful radiographic accelerator that will be the principal diagnostic device for the future Advanced Hydrotest Facility (AHF).

Physical Description

8 p.

Notes

INIS; OSTI as DE98058828

Other: FDE: PDF; PL:

Source

  • 23. international power modulator symposium, Rancho Mirage, CA (United States), 22 Jun 1998

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  • Other: DE98058828
  • Report No.: UCRL-JC--130691
  • Report No.: CONF-980665--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 304797
  • Archival Resource Key: ark:/67531/metadc684505

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  • June 1998

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  • July 25, 2015, 2:20 a.m.

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  • April 6, 2017, 6:11 p.m.

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Kirbie, H. An all solid state pulse power source for high PRF induction accelerators, article, June 1998; California. (digital.library.unt.edu/ark:/67531/metadc684505/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.